Juicing machine



March 18, 1941. 'A W, @QULD 2,235,746

JUIcNG MACHIN Filed July 2l, 1939 4 Sheets-Sheet l (Uhr. umd

March 18, 1941. Av1/,Gauw 2,235,746

-JUICING MACHINE Filed July 21, 1959 4 Sheets-Sheet 2.

March 18, 1941.

K A. W. GOULD JUICING MACHINE Filed July 21, 19:59'

4 Sheets-Sheet 3 March 1S, 1941.. A Wl Gouumm f@ JUIGINGI MACHINE `Filed July 2l, 19259 L Sheets-Smet 4 Patented Mar. 1.8, 1.941

UNITED sTA'TEs PATENT OFFICE JUICING MACHINE Albert W. Gould, Loughman, Fla. Application July 21, 1939, Serial No. 285,772

,7 Claims.

This invention relates to machines for extracting fruit juices and more especially to that type of machine for extracting the .juices of citrus fruits, wherein the fruit is split by a suitable knife and the two halves are thereinafter sub- A third important object of the invention isL to provide a novel form of presser roll operating in conjunction with the extractor roll.

A fourth important object of the invention is to provide a novel arrangement of presser and extractor roll wherein provision is made for ad justment of the presser roll toward and from the extractor roll. I'

With the above and other objects in viewv as will be hereinafter apparent, the invention consists in general `of certain novel details of construction and combinations of parts hereinafter fully described, illustrated in the accompanying drawings and specifically claimed. L

In theaccompanying drawings like characters of reference indicate like parts in the several views, and:

Figure 1 isa view of the left-hand end of the n machine showing they general construction thereof;

Figure 2 is a view of the right-hand end of the machine with certain of the parts omitted in order to better discloserother parts;

Figure 3 is an enlarged detailed view partly in elevation from the right-hand end and partly in section and showing the essentially novel arrangement of the knife and rolls, together with other associated parts;

Figure 4 is an enlarged detailed view of the means for adjusting the presser roll toward and from the extractor roll;

Figure 5 is a fragmentary detail to large scale showing the extractor roll, the wiping bar and! the cleanout fingers;

Figure 6 is an enlarged detailed end view part-` ly in section of the parts shown in Figure 4.

In the embodiment of the invention here shown "there istindicated in general a frame I0.

It is not deemed necessary to describe the exact 5" construction of this frame since those` parts On each of the shafts 43 thereof having to do with the present invention will be hereinafter referred to. Supported adjacent this frame is an auxiliary frame II, Vthe inner end of the top of this auxiliary frame being carried by a bracket I2 attached to the main 5 frame III. The auxiliary' frame includes a` platform I3 whereon is mounted a motor I4. Supported at the front and rear of the frame' III are brackets I5 whereon are mounted alined bearings I6 in which is journaled a knife shaft I1. Mount- T0 ed on this knife shaft centrally between the front and rear sides of the frame II) is a splitting lmife I8, at each side of which is a circular shield I9 whereby fruit delivered to the knife is forced out of contact therewith so that the halves of the fruit drop onto downwardly inclined delivery chutes 2II. On the shaft 2l of the motor I4 there is fixed a sprocket 22 which is connected by a chain v23 with a sprocket 24 fixed upon the shaft I1. Thereby operation of the motor I4 causes 20 rapid rotation of the knifel.

Also on the shaft 2l there is fixed a sprocket 25 which is connected by a chain 26 to a sprocket 21 on the drive shaft 28 of a reduction gearing, such as a worm or worm wheel gearing, the hous- 25 ing of which is shown 4at 29. It. is not deemed necessary to show the construction of this gearing since the same is old and well known.

suitably supported from the frame I0 is a shaft which extends along the rear of the 30 machine. 0n the shaft 30 is fixed a sprocket 3i which is connected by a chain 32 with a sprocket 33 on the driven shaft 34 of the reduction gearing held in the housing 23.

At the rear of the frame I0, and at the top 35 thereof, there is provideda bracket structure .35 which supports bearings, one of which is shown at 36. Journaled in these bearings is a shaft 31 whereon is fixed a sprocket 38 which is connected by a chain 39 to a sprocket 40 fixed on the 40 shaft 30.

Just below the shaft I1 the frame II) includes a pair of frame members, one at each side, as indicated at 4I'. On these `frame members are mountedv bearings 42 spaced equally from the 45 knife I6 toward the front and rear of the machine, and in these bearings are journaled shafts 43'.l The frame III carries a bracket 44 and on l this bracket is mounted a pair of idler pulleys 45.

is mounted a sprocket 46 50 i and on the shaft 31 is mounted a further sprockyet 41. A chain 48 runs downwardly from the sprocket 41, passes around one of the idler pulleys and thence under the front sprocket 46,

l"over the rear sprocket 46, back to the remaining idler pulley 45 and up to the sprocket 41. By

this means the shafts 43 are driven in opposite' directions. Each lof the shafts 43 has supported thereon a pair of elongated bars 49, the bars of each shaft being connected by rods 50, each rod being located at a respective end of the bar. 'Ihe shafts 43 are so positioned that when rotating, the bars 50 work over the chutes 20 in a direction as indicated by the arrows in Figure 3 to cause the halves of the split fruit to pass down the chutes 26.

Secured to each side of the frame l is a pair of plates each having formed or Welded thereon the bearing sleeves 52. Mounted rotatably in the sleeves 52 are extractor roll shafts 53. 0n each of the shafts 53 is mounted a pair of extractor rolls indicated in general at 54. As best shown in Figure 5 each of these extractor rolls comprises a cylindrical body 55 having formed therein a multiplicity of deep and narrow annular grooves 56 spaced longitudinally of the roll. Also extending from side to side of the machine, and suitably journaled to said sides, is a pair of presser roll shafts 51. Each of the shafts 51 carries a presser roll 58 having a series of ribs 59 formed thereon, the ribs extending longitudinally of the roll and being parallel to each other.

In order to journal the shafts 51-so that the presser rolls 58 may be adjusted toward and from the extractor rolls 54, there isprovided at the front and rear of the frame and located at each side thereof, a bracket 59'. On each of these brackets is supported a bearing 60 whereto is pivoted a rock arm 6| in which a respective end of the shaft 51 is journaled. This rock arm 6| has its upper end curved outwardly as at 62. Mounted on the frame in substantial alinement of the upper ends 62 of the rock arms are plates 63 through which passes the shank 68 of an adjusting screw 65. The shank 64 carries on its outer end a hand wheel 66 for manipulation of the Screw and the screw is prevented from moving longitudinally by means of collars 61 xed thereto on opposite sides of the plate. A yoke member or fork 68 is pivoted to the end 62 by a pivo-t 69 and this yoke member is provided with an internal threaded boss 18 wherein the screw 65 ts. Itis to be' noted that lost motion Will be -provided at the pivot connection 69 to v permit proper operation of the device.

With this construction, rotation of the screw 65 in one direction causes the presser roll 58 to approach theextractor roll, while rotation in the opposite direction causes the presser roll to move away from the extractor roll and thereby the degree of pressure on the split fruit during its passage between the rolls may be regulated.

On each of the shafts 51 there is fixed a sprocket 1| and on the shaft 30 is a sprocket 12. Also there is supported on the frame an idler pulley 13. A chain 14 extends from the pulley 12 beneath the adjacent sprocket 1|, over the idler 13, over the remaining sprocket 1| and back to the sprocket 12. Also, on the shaft 30 is a sprocket and on each of the shafts 53 is a sprocket 16. Opposite the shaft 30 the frame supports an idler pulley 11 and the chain 18 of the bars 50.

In order to assist in feeding the fruit halves between the rolls and-then push them downward there is provided a pair of shafts 19 which are journaled in the arms 6| and each of these shafts carries a pair of spaced discs 8U connected by rods 8|, there preferably being four of these rods.

In order to revolve the shafts 19 there is provided on each of these shafts a sprocket 82 which is connected by a chain 83 with the chain 84 mounted on the respective shaft 51. By this means rotation of the shaft 19 is in such direction, as shown by the arrows in Figure 3, that material passed from the chutes is pushed down between the presser and extractor rolls.

In order to effect the separation of the juice from the rinds, seeds and most of the pulp, there is provided a wiper bar 85 having notches 85 wherein the ribs between the grooves t which is supported by a plate 86 at each end, these plates engaging on the sleeves 52 so that they do not contact with the shafts 53. This Wiper bar rests against the face of the extractor roll and carries brackets or arms 81 which, in turn, carry cleanout bars 88 provided with fingers 89, each of which extends into a respective slot substantially to the bottom thereof so that any material, such as pulp, which would tend to collect in the slots 56, is forced outwardly therefrom. Moreover, by the providing of the narrow slots 56, the juice is trapped by capillary attraction in these slots and prevented from running down over the Wiper bar, the function of the latter being to keep the outer part of the roll clear so that the juice can enter the slots. By an inspection of Figure 3 it will be seen that the upper edge of the bar 85 engages the roll 54 substantially along the line of intersection of a plane connecting the axes of the shafts 53 and 51 with the periphery of the roll 54. Thus the upper edge of bar 85 is substantially at the nearest portions of the peripheries of rolls 54 and 58. It is to be observed that in the operation of the rolls 54 and 58, until fruit and little or no squeezing effect is produced on the peel or rind. However, along the line of greatest approximation of the rolls 54 and 58 the peel or rind will be apt to be squeezed and the bitter oil expressed. Because of the presence of the bar 85 practically none of this bitter oil will enter the slots of the roll 54 so that the desirable juice will not be contaminated but will be pure and sweet.

Secured to the outer face of each wiperbar is a refuse chute 90 having a reenforcing rib 9|, and on'the under side of this downwardly inclined chute 90 is a stop plate 92 which serves to prevent any juice which may run down the under side of the chute 90 from passing beyond the Walls of a tank or receptacle 93 which is mounted at the bottom of the machine to receive the juice.

The fruit is fed to the knifev in proper position for splitting by a, V-shapedstructure 94 at the top of t'ne machine, this structure including a pair of synclinal belts having suitable lugs thereon to convey the fruit.

In operation, the fruit is conveyed tothe knife by these belts and the knife serves to split the same, the halves passing down the `chutes 20. being assisted in this operation by the action After leaving the chutes the halves drop between the presser and extractor rolls and are pushed down therebetween by the u `liability of the rind orf'any oil expressed therefrom becoming mixed with the juice expressed froml the pulp cells.

It `will be noted that the belt arrangement is such that the extractor roll has a lower peripheral speed than the presser roll and yet, by reason of the peculiar construction, the extractor roll is run at a low speed, for instance, about so R.- P. M. y

it is obvious that minor .changes may be made in the form and construction of. the invention without departing from the material spirit thereof. It is not, therefore, desired to confine the invention to the exact form'herein shown and described, but it isldesired to include all such as properly come within the scope claimed.

Having thus described the invention, what vis claimed as new is:

1. In a fruit juicing machine for expressing the juice from fruit with the skin on the latter, an extractor roll comprising a cylindrical body provided with a multiplicity of spaced circumferential juice receiving grooves, means for rotating the extractor roll, a squeezing roll extending parallel with and adjacent the extractor roll, the rolls being spaced apart sufficiently for the passage of the skin and pith of the fruit, means for delivering fruit sections between the extractor roll and squeezing roll with the pulp surface. thereof to be engaged by the periphery of the extractor roll, means for rotating the extractor roll and the squeezing roll in opposite directions to squeeze the juice from the pulp of the fruit, releasing and deflecting means engaging the pe,- ripheral surface of the extractor roll at the most proximate point of maximum expressing to remove the accumulated pulp and pulp juice and deflecting the skin away from the extractor roll, means for conveying the skin and pith from the releasing and deilecting means, a plurality of L scraper lingers fitting in the grooves of the extractor roll, said fingers engaging the bases of the grooves and located below the upper edge of the releasing and deilecting means, whereby to remove accumulated pulp juice in the grooves of the extractor roll, and means independent of the skin and pith conveying means for receiving the expressed fruit juice.

2. In a fruit juicing machine for expressing the juice from fruit with the skin on the latter, an extractor roll comprising a cylindrical body provided with a multiplicity of spaced circumferential juice receiving grooves, means for rotating the extractor roll, a squeezing roll extending parallel with and adjacent the extractor roll, the rolls being spaced apart suiliciently for `the passage of `the skin and pith of the fruit, means for delivering fruit sections between the extractor roll and squeezing roll with the pulp surface thereof to be engaged by the periphery ofthe extractor roll, means for rotating the extractor roll and the squeezing roll in opposite directions to squeeze the juice from the P1111) of the fruit, including means for rotating the squeezing roll faster than the extractor roll, means engaging the Vperipheral surface of theextractor surface of the extractor roll at' or about the time .the juice squeezing action'commences, whereby to. avoid substantially any skin particles being mixed with the fruit `juice expressed in the grooves of the extractor roll, means for conveying the skin from the skin directing means, -a plurality of scraper fingers tting in the grooves of the extractor roll below the upper edge of the skin-removing means, whereby to remove accumulated pulp juice in the grooves of the extractor roll, and means independent of the skin conveying means for receiving the expressed fruit Juice.

3. An extracting mechanism for juicing machines, including cooperating extracting roll and presser roll, means for operating the rolls to cause their proximate cooperating peripheral surfaces to move in the same direction, the rolls being spaced apart to compel an approximately complete juice extracting pressure on any fruit element passing between the rolls, means for delivering a halved fruit element between the rolls, with the pulp side in contact with the extractor roll, the extractor roll being formed with juice receiving channels to direct the juices extracted from the vpulp of the fruit element circumferentially of the extractor roll to a point of discharge, the presser roll being peripherally fluted to cooperate with the rind of the fruit elements during the extracting operation, and means cooperating with the extractor roll at substantially the point of maximum pressure between the rolls to deflect any juices extracted from the pulp of the fruit element into the chan nels of the extractor roll, and to prevent any oil extracted from the rind of the fruit element under the pressure between the rolls from reaching the fruit channels of the extractor roll.

4. An extracting mechanism for juicing machines, including cooperating extracting roll and presser roll, means for operating the rolls to cause their proximate cooperating peripheral surfaces to move in the same direction, the rolls being spaced apart to compel an approximately complete juice extracting pressure on any fruit element passing between the rolls. means for delivering a halved fruit element between the rolls, with the pulpside in contact with the extractor roll, the extractor roll being formed with juice receiving channels to direct the juices extracted from the pulp of the fruit element circumferentially of the extractor roll to a point of discharge. the presser roll being peripherally fiuted to cooperate withthe rind of the fruit elements during'the extracting operation, and a wiper bar cooperating with the extractor roll at substantially the point of maximum pressure between the rolls, said wiper bar being wholly imperforate for its full length immediately below its cooperation with the extractor roll to thereby completely segregate the juices extracted from the pulp andvdelivered to the channels of the extractor roll and any oil extraction from the rind of thev fruit element which may be extracted through the cooperation of the presser roll. e

5. An extracting mechanism for juicing machines, including cooperating extracting roll and presser roll, means for operating the-rolls to complete juice extracting pressure on any fruit element passing between the rolls, means for delivering a halved fruit element between the rolls, With the pulp side in Contact with the extractor roll, the extractor roll being formed with juice receiving channels to direct the juices extracted from the pulp of the fruit element circumferentially of the extractor roll to a point of discharge, the presser roll being peripherally uted to cooperate with. the rind of the fruit elements during the extracting operation, and means arranged between the rolls to completely segregate the juices extracted from the pulp from any oil extraction from the rind of the fruit element, incident to the operation of the presser roll, whereby the juice of the fruit element andv the oil of the rind cells are automatically separated for independent discharge.

6. An extracting mechanism for fruit juicing machines, including cooperating elements oetween which a ,divided section of citrus fruit is subjected to a juice extracting operation, one of said elements having circumferential recessions cooperating with the pulp side of the divided fruit and the other of said elements cooperating with the rind side of said fruit, the element cooperating with the pulp side of the fruit directing the extracted juices in one direction, -the element cooperating With the rind side of the fruit carrying incidentally extracted oils in another direction, and means arranged in that relation. to the ele ments as will prevent any fao-mingling and maintain substantially complete separa-tion of any extracted juicestfrom the pulp and incidental oils extracted from the rind.

'7. Means for expressing juice from citrus fruit and at the same time substantially separating skinoil, comprising a slotted element over the surface of which the cut face of halved fruit passes, a ribbed squeezing roll spaced from the slotted element to engage the outer surface ci the skin of the cut fruit, means for rotating the ribbed roll, means for feeding cut sections of fruit to and between the slotted element and the ribbed roll, and a at plate located adjacent the slottedelement and between same and. the ribbed roll, whereby when a half fruit section is passed between the slotted element and the ribbed roll juice from pulp cells will be expressed therefrom and through the slots in one direction, and the skin, pith. and any extracted skin oil will be carried away inthe opposite direction.

ALBERT 'W'. GOULD.

Cai 

